# data[].attributes.attachment_link.title
General Lab Safety and Lab Techniques- lab blended - Answers

# data[].attributes.body
Q6.

# data[].attributes.body
1.) When you heat a solution in a test tube, use a test tube holder and face the opening of the test tube away from you, as there may be gas escaping. Gloves may offer more protection in case of any spillage of chemicals.

2.) Neutralise the sulphuric acid with a suitable base solution, then wipe the liquid away with a paper towel or sponge.

3.) I would add the acid into the water because because if it was done vice versa, the water would fizzle on contact with the surface of the acid, causing a potential hazard

4.) 26.35 ml

5.) Milligrams

# data[].attributes.body
1. First ensure the test tube is placed in a water bath or use test tube holder to hold the test tube over direct heat.

2.

3. Acid to water because if water to acid the first drop of water will react with the acid

4.Figure C

-25.6ml

5. Grams

6.

# data[].attributes.body
1.Use the test tube holder to hold the test tube and make sure the opening of the test tube is not facing anyone.

2.Contain and soak up spill with absorbent that does not react with spilled product. Place used absorbent into suitable, covered, lavelled containers for disposal.

3.Adding water is safer thr case of it spilling some of its contents; with acid, spilling a small part of its contents can be harmful.

4. 5.7

5. Grams

# data[].attributes.body
Q1- Ensure the mouth of the test tube is not facing ourself or anyone infrong of us. Use a test tube holder while heating the test tube.

Q2- Put excess baking soda to neutralise the acid and pick up the solid formed and dispose of it

Q3- Add acid to water. This is because when water is added to acid, an extremely concentrated acid solution is formed. A lot of heat is released, solution may boil violently when heated and may splash out.

Q4- B (25.7ml)

Q5- grams

Q6-

# data[].attributes.body
1. Use tongs to handle the test tube, use a test tube, wear gloves

2. Dilute with water,and neutralise it with alkali, and mop/wipe it up

3. Water to acid, so that acid will not be spilt

4. 25.7ml

5. Kilogram, kg

6.

# data[].attributes.body
1.Place the test tube in a water bath, and heat the water bath. Also, use a test tube tongs to handle the test tube while heating.
2.Add water/base to neutralise the acid, then wipe it off with a cloth.
3. Add acid to water. When acid is poured into water, it flows down the flask and mixes much better, so no boiling occurs & the energy released due to acid water interaction is absorbed by water which is present in larger amount as compared to acid.
4. 25.6ml
5. Gram
6.

# data[].attributes.body
Sue Ying
Zi Qi
Edmund

# data[].attributes.body
Jun Kit
Calvin
Khee Kai
Ming Wei

# data[].attributes.body
Charmaine
Jaclyn
Rui Yin
Kun Wah
Emily

# data[].attributes.body
Yoong-shern
Boon bing
Chun zhe
Jun you

# data[].attributes.body
Nic Sern
Darshan
Khiireeth
Bernie
Yin Thong

# data[].attributes.body
Karshing
Hao Yen
Kai Chung
David
Dylan

# data[].attributes.body
(Type your answer)
1. ..........
2. ..........
3. ..........
4. ..........
5. ..........
6. ..........

# data[].attributes.body
Using the Weighing Balance
http://www.videosmaller.com/

# data[].attributes.body
Memory Game
https://matchthememory.com/laboratoryequipment